From 4856b0b4af47f316c497ecaaf740186f23dd11fd Mon Sep 17 00:00:00 2001
From: Kalle Wallin <kaw@linux.se>
Date: Wed, 14 Apr 2004 18:55:48 +0000
Subject: [PATCH] relocated configuration file to ~/.ncmpc/config and added
 support for key bindings in ~/.ncmpc/keys.

git-svn-id: https://svn.musicpd.org/ncmpc/trunk@751 09075e82-0dd4-0310-85a5-a0d7c8717e4f
---
 conf.c | 214 +++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 conf.h |   2 +-
 2 files changed, 208 insertions(+), 8 deletions(-)

diff --git a/conf.c b/conf.c
index 6def7b6..80f40db 100644
--- a/conf.c
+++ b/conf.c
@@ -1,3 +1,4 @@
+#include <ctype.h>
 #include <stdio.h>
 #include <errno.h>
 #include <stdlib.h>
@@ -13,6 +14,7 @@
 #include "config.h"
 #include "options.h"
 #include "support.h"
+#include "command.h"
 #include "conf.h"
 
 #ifdef DEBUG
@@ -38,7 +40,15 @@
 #define CONF_COLOR_PROGRESS          "progress_color"
 #define CONF_COLOR_STATUS            "status_color"
 #define CONF_COLOR_ALERT             "alert_color"
+#define CONF_KEY_DEFINITION          "key"
 
+typedef enum {
+  KEY_PARSER_UNKNOWN,
+  KEY_PARSER_CHAR,
+  KEY_PARSER_DEC,
+  KEY_PARSER_HEX,
+  KEY_PARSER_DONE
+} key_parser_state_t;
 
 static int
 str2bool(char *str)
@@ -72,7 +82,134 @@ str2color(char *str)
   return -1;
 }
 
-int
+static int
+parse_key_value(char *str, size_t len, char **end)
+{
+  int i, value;
+  key_parser_state_t state;
+
+  i=0;
+  value=0;
+  state=KEY_PARSER_UNKNOWN;
+  *end = str;
+
+  while( i<len && state!=KEY_PARSER_DONE )
+    {
+      int next = 0;
+      int c = str[i];
+
+      if( i+1<len )
+	next = str[i+1];
+
+      switch(state)
+	{
+	case KEY_PARSER_UNKNOWN:
+	  if( c=='\'' )
+	    state = KEY_PARSER_CHAR;
+	  else if( c=='0' && next=='x' )
+	    state = KEY_PARSER_HEX;
+	  else if( isdigit(c) )
+	    state = KEY_PARSER_DEC;
+	  else {
+	    fprintf(stderr, "Error: Unsupported key definition - %s\n", str);
+	    return -1;
+	  }
+	  break;
+	case KEY_PARSER_CHAR:
+	  if( next!='\'' )
+	    {
+	      fprintf(stderr, "Error: Unsupported key definition - %s\n", str);
+	      return -1;
+	    }
+	  value = c;
+	  *end = str+i+2;
+	  state = KEY_PARSER_DONE;
+	  break;
+	case KEY_PARSER_DEC:
+	  value = (int) strtol(str+(i-1), end, 10);
+	  state = KEY_PARSER_DONE;
+	  break;
+	case KEY_PARSER_HEX:
+	  if( !isdigit(next) )
+	    {
+	      fprintf(stderr, "Error: Digit expexted after 0x - %s\n", str);
+	      return -1;
+	    }
+	  value = (int) strtol(str+(i+1), end, 16);
+	  state = KEY_PARSER_DONE;
+	  break;
+	case KEY_PARSER_DONE:
+	  break;
+	}
+      i++;
+    }
+
+  if( *end> str+len )
+    *end = str+len;
+
+  return value;
+}
+
+static int
+parse_key_definition(char *str)
+{
+  char buf[MAX_LINE_LENGTH];
+  char *p, *end;
+  size_t len = strlen(str);
+  int i,j,key;
+  int keys[MAX_COMMAND_KEYS];
+  command_t cmd;
+
+  /* get the command name */
+  i=0;
+  j=0;
+  memset(buf, 0, MAX_LINE_LENGTH);
+  while( i<len && str[i]!='=' && !IS_WHITESPACE(str[i]) )
+    buf[j++] = str[i++];
+  if( (cmd=get_key_command_from_name(buf)) == CMD_NONE )
+    {
+      fprintf(stderr, "Error: Unknown key command %s\n", buf);
+      return -1;
+    }
+
+  /* skip whitespace */
+  while( i<len && (str[i]=='=' || IS_WHITESPACE(str[i])) )
+    i++;
+
+  /* get the value part */
+  memset(buf, 0, MAX_LINE_LENGTH);
+  strncpy(buf, str+i, len-i);
+  len = strlen(buf);
+  if( len==0 )
+    {
+      fprintf(stderr,"Error: Incomplete key definition - %s\n", str);
+      return -1;
+    }
+
+  /* parse key values */
+  i = 0;
+  key = 0;
+  len = strlen(buf);
+  p = buf;
+  end = buf+len;
+  memset(keys, 0, sizeof(int)*MAX_COMMAND_KEYS);
+  while( i<MAX_COMMAND_KEYS && p<end && (key=parse_key_value(p,len+1,&p))>=0 )
+    {
+      keys[i++] = key;
+      while( p<end && (*p==',' || *p==' ' || *p=='\t') )
+	p++;
+      len = strlen(p);
+    } 
+  if( key<0 )
+    {
+      fprintf(stderr,"Error: Bad key definition - %s\n", str);
+      return -1;
+    }
+
+  return assign_keys(cmd, keys);
+}
+
+static int
 read_rc_file(char *filename, options_t *options)
 {
   int fd;
@@ -81,12 +218,9 @@ read_rc_file(char *filename, options_t *options)
   int free_filename = 0;
 
   if( filename==NULL )
-    {
-      filename = g_build_filename(g_get_home_dir(), RCFILE, NULL);
-      free_filename = 1;
-    }
+    return -1;
 
-  D(printf("\n--Reading configuration file %s\n", filename));
+  D(printf("Reading configuration file %s\n", filename));
   if( (fd=open(filename,O_RDONLY)) <0 )
     {
       D(perror(filename));
@@ -160,8 +294,13 @@ read_rc_file(char *filename, options_t *options)
 	      
 	      match_found = 0;
 	      
+	      if( !strcasecmp(CONF_KEY_DEFINITION, name) )
+		{
+		  parse_key_definition(value);
+		  match_found = 1;
+		}
 	      /* enable colors */
-	      if( !strcasecmp(CONF_ENABLE_COLORS, name) )
+	      else if( !strcasecmp(CONF_ENABLE_COLORS, name) )
 		{
 		  options->enable_colors = str2bool(value);
 		  match_found = 1;
@@ -247,7 +386,68 @@ read_rc_file(char *filename, options_t *options)
 }
 
 
+int
+read_configuration(options_t *options)
+{
+  char *filename = NULL;
+
+  /* check for user configuration ~/.ncmpc/config */
+  filename = g_build_filename(g_get_home_dir(), "." PACKAGE, "config", NULL);
+  if( !g_file_test(filename, G_FILE_TEST_IS_REGULAR) )
+    {
+      g_free(filename);
+      filename = NULL;
+    }
 
+  /* check for  global configuration SYSCONFDIR/ncmpc/config */
+  if( filename == NULL )
+    {
+      filename = g_build_filename(SYSCONFDIR, PACKAGE, "config", NULL);
+      if( !g_file_test(filename, G_FILE_TEST_IS_REGULAR) )
+	{
+	  g_free(filename);
+	  filename = NULL;
+	}
+    }
+
+  /* load configuration */
+  if( filename )
+    {
+      read_rc_file(filename, options);
+      g_free(filename);
+      filename = NULL;
+    }
+
+  /* check for  user key bindings ~/.ncmpc/keys */
+  filename = g_build_filename(g_get_home_dir(), "." PACKAGE, "keys", NULL);
+  if( !g_file_test(filename, G_FILE_TEST_IS_REGULAR) )
+    {
+      g_free(filename);
+      filename = NULL;
+    }
+
+  /* check for  global key bindings SYSCONFDIR/ncmpc/keys */
+  if( filename == NULL )
+    {
+      filename = g_build_filename(SYSCONFDIR, PACKAGE, "keys", NULL);
+      if( !g_file_test(filename, G_FILE_TEST_IS_REGULAR) )
+	{
+	  g_free(filename);
+	  filename = NULL;
+	}
+    }
+
+  /* load key bindings */
+  if( filename )
+    {
+      read_rc_file(filename, options);
+      g_free(filename);
+      filename = NULL;
+      //write_key_bindings(stderr);
+    }
+
+  return 0;
+}
 
 
 
diff --git a/conf.h b/conf.h
index ee7656e..5f91410 100644
--- a/conf.h
+++ b/conf.h
@@ -1,3 +1,3 @@
 
-int read_rc_file(char *filename, options_t *options);
+int read_configuration(options_t *options);
 
-- 
2.30.2